Frans Geffels, known in Italy as Francesco Geffels was a Flemish painter, printmaker, architect, stage designer and designer of ephemeral structures for solemn and festive occasions. After training in his native Antwerp, he was mainly active in Mantua, where he was prefetto delle fabbriche to the Duke, a role that gave him the direction of the artistic and construction activities undertaken by the Ducal court. He worked also on projects for the local aristocratic class of Mantua. In addition, he completed projects for the Liechtenstein princes and for the imperial court in Vienna.
He was both a canvas and fresco painter. He created portraits, history subjects, military scenes, architectural scenes and genre art, in particular merry companies. Geffels is mainly remembered as the designer of some of the key examples of Baroque architecture in Mantua.